<template>
  <div class="chat">
    <van-list
      v-model="loading"
      :finished="finished"
      finished-text="没有更多了"
      @load="onLoad"
    >
      <chat-center :chatList="chatList"></chat-center>
      <van-cell v-for="item in list" :key="item" :title="item" />
    </van-list>
  </div>
</template>

<script>
import chatCenter from "@/views/news/ui/chatcenter.vue";

export default {
  components: {
    chatCenter,
  },
  name: "chat",
  data() {
    return {
      list: [],
      loading: false,
      finished: false,
      page: 1,
    };
  },
  props: {
    chatList: {
      type: Array,
      require: true,
    },
    total: {
      type: Number,
      require: true,
    },
    fetchData: {
      type: Function,
    },
  },
  methods: {
    onLoad() {
      //   // 异步更新数据
      //   // setTimeout 仅做示例，真实场景中一般为 ajax 请求
      const i = setTimeout(async () => {
        // for (let i = 0; i < 10; i++) {
        //   this.list.push(this.list.length + 1);
        // }
        // // 加载状态结束
        // this.loading = false;
        // // 数据全部加载完成
        // if (this.list.length >= 40) {
        //   this.finished = true;
        // }
      
        if (i) clearTimeout(i);
        await this.fetchData((this.page += 1), 10);
        this.loading = false;
        if (this.page * 10 >= this.total) {
          this.finished = true;
        }
      }, 500);
    },
  },
  mounted() {
    this.list = this.chatList;
  },
};
</script>

<style lang="scss" scoped>
.chat {
  background-color: #f7f8fd;
  width: 100%;
  
}
</style>